Bigleaf hydrangeas (Hydrangea macrophylla), aka “hortensia” hydrangeas, bear pink flowers in low acidic and alkaline soil and blue flowers in mildly acidic soil. Some tips about regulating soil pH and flower color in bigleaf hydrangeas follows. First, a short review about soil pH. Soil pH measures soil […]
Archive for February 14th, 2016
Changing Bigleaf Hydrangea Flower Color
Posted by Hugh on February 14th, 2016
Posted in acidic soil, acidify soil, alkaline soil, Bigleaf hydrangea (H. macrophylla), Container growing, container shrub, Fertilizing plants, Hydrangeas, mulching, plant nutrition, Soil drainage, Southern Appalachian Region, Summer flowering, Trees & Shrubs, watering tips 
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